data-transfer/SnapshotWinFormsApp/MainForm.cs

using SnapshotWinFormsApp.Application;
using SnapshotWinFormsApp.Repository;
using SnapshotWinFormsApp.Tools;

namespace SnapshotWinFormsApp;

public partial class MainForm : Form
{
    private readonly DbSqlServer _sqlServerDB;
    private readonly SnapshotUserInfoApplication _snapshotUserInfoApplication;
    private CancellationTokenSource? _cts;

    public MainForm(DbSqlServer sqlServerDB)
    {
        _sqlServerDB = sqlServerDB;
        _snapshotUserInfoApplication = new SnapshotUserInfoApplication(sqlServerDB);

        InitializeComponent();
        logTxt.AppendText("³õʼ»¯Íê³É\r\n");
        logTxt.AppendText("ÈÕÖ¾Îļþ¼Ð:" + Logs.Path() + "\r\n");
    }

    private void OkBtn_Click(object sender, EventArgs e)
    {
        _cts?.Cancel();
        _cts = new CancellationTokenSource();
        var token = _cts.Token;
        Task.Run(() => _snapshotUserInfoApplication.ImportSnapshotUserInfoAsync(AddLog, token));
    }

    private void AddLog(string msg)
    {
        this.Invoke((EventHandler)delegate 
        {
            this.logTxt.AppendText(msg + "\r\n");
            Logs.Note(msg);
        });
    }

    private void CancelBtn_Click(object sender, EventArgs e)
    {
        _cts?.Cancel();
    }
}